The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 03, 2002
Filed:
Mar. 17, 2000
Applicant:
Inventors:
Ludwig Böge, Jenapriessnitz, DE;
Hans-Joachim Freitag, Jena, DE;
Assignee:
Dr. Johannes Heindenhain GmbH, Traunreut, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01B 2/116 ;
U.S. Cl.
CPC ...
G01B 2/116 ;
Abstract
A position measuring device having a graduated scale carrier member which is secured to a holder is described. The graduated scale carrier member is secured to the bottom side of the holder, so as to float over a viscous liquid film. The holder, in turn, is elastically supported on a mount. The measuring graduation marking is scanned through the holder, which is preferably made of transparent glass.